Originally Posted by stevenvillatoro

Honda Insight owners are probably the most obsessive (not in a bad way) about mileage issues, including tire PSI, nitrogen, etc. You will find excellent discussions about nitrogen at insightcentral.net. I was looking at that topic last night on their site, and read that tire air compressors (the type you find for public use outside of gas stations) use 79 percent nitrogen. It seemed that people concurred there was no real reason to use nitrogen unless you were driving a race car that might be prone to blowouts... since nitrogen does not alter tire pressures as it heats up. If any of my info was stated incorrectly, will someone hit me over the head with a Smart Key, please?